Materialtpe silicone connectionbluetooth40 talk timeh0 typesmart bracelet featurescalories burned community share alarm clock find my device timer information heart rate monitor wearable sleep tracker sports water resistant water proof health care long standby pedometers modelsr02 sensorgyro sensor accelerometer light sensor gravity sensor finger sensor heart rate sensor supported operation systemandroid ios screen typedisplay technologyoled cpuda14580 rammb0 rom